Health and Community Services Union assistant state secretary Robbie Moore said the union would continue to seek a caseload cap for workers.

"We'll be demonstrating that the bans aren't putting the community at risk, in fact what we're doing is trying to address long-term safety issues," Mr Moore said.

Union members placed a temporary cap on their caseloads last Tuesday in an attempt to get the government and health department to acknowledge high workloads.

The TIC recommended on Friday that certain caseload numbers would serve as a trigger point, at which time a team leader would discuss with the worker how the cases would be managed and whether there was capacity for them to take on more work.

But staff voted against the recommendation because they felt the DHHS had implied they were jeopardising the health and safety of children as a result of the industrial action.

Human Services Minister Jacquie Petrusma said on Tuesday that Labor was irresponsibly encouraging child protection workers to continue the action that "flies in the face of recommendations by the TIC".

Labor human services spokeswoman Rebecca White said child protection workers felt unsupported, and concerned about their capacity to manage cases.

Ms White said despite child protection issues on the North-West and industrial action from the workforce, Ms Petrusma "still didn't seem to realise there was a problem".

"The staff are taking this action because they have genuine concerns about their capacity to provide appropriate support to Tasmania's vulnerable children," Ms White said.

Ms Petrusma said Ms White "would rather support the real opposition in the union movement than the vulnerable children in our child protection system".